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libimcv: Removed TCG SWID IMC/IMV support

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This commit is contained in:
Andreas Steffen
2018-06-12 21:47:39 +02:00
parent eccd2b6e09
commit a31f9b7691
34 changed files with 7 additions and 4510 deletions
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src/libimcv/plugins/imc_swid/.gitignore
-1
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@@ -1 +0,0 @@
strongswan.org_*.swidtag
src/libimcv/plugins/imc_swid/Makefile.am
-36
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@@ -1,36 +0,0 @@
regid = strongswan.org
unique_sw_id = strongSwan-$(PACKAGE_VERSION_MAJOR)-$(PACKAGE_VERSION_MINOR)-$(PACKAGE_VERSION_BUILD)$(PACKAGE_VERSION_REVIEW)
swid_tag = $(regid)__$(unique_sw_id).swidtag
swiddir = $(pkgdatadir)/swidtag
dist_swid_DATA = $(swid_tag)
EXTRA_DIST = $(regid)__strongSwan.swidtag.in
CLEANFILES = $(regid)__strongSwan*.swidtag
$(swid_tag) : $(regid)__strongSwan.swidtag.in
$(AM_V_GEN) \
sed \
-e "s:@VERSION_MAJOR@:$(PACKAGE_VERSION_MAJOR):" \
-e "s:@VERSION_MINOR@:$(PACKAGE_VERSION_MINOR):" \
-e "s:@VERSION_BUILD@:$(PACKAGE_VERSION_BUILD):" \
-e "s:@VERSION_REVIEW@:$(PACKAGE_VERSION_REVIEW):" \
$(srcdir)/$(regid)__strongSwan.swidtag.in > $@
AM_CPPFLAGS = \
-I$(top_srcdir)/src/libstrongswan \
-I$(top_srcdir)/src/libtncif \
-I$(top_srcdir)/src/libimcv \
-DSWID_DIRECTORY=\"${prefix}/share\"
AM_CFLAGS = \
$(PLUGIN_CFLAGS)
imcv_LTLIBRARIES = imc-swid.la
imc_swid_la_LIBADD = \
$(top_builddir)/src/libimcv/libimcv.la \
$(top_builddir)/src/libstrongswan/libstrongswan.la
imc_swid_la_SOURCES = imc_swid.c imc_swid_state.h imc_swid_state.c
imc_swid_la_LDFLAGS = -module -avoid-version -no-undefined
src/libimcv/plugins/imc_swid/imc_swid.c
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@@ -1,417 +0,0 @@
/*
* Copyright (C) 2013-2017 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "imc_swid_state.h"
#include <imc/imc_agent.h>
#include <imc/imc_msg.h>
#include "tcg/seg/tcg_seg_attr_max_size.h"
#include "tcg/seg/tcg_seg_attr_seg_env.h"
#include "tcg/swid/tcg_swid_attr_req.h"
#include "tcg/swid/tcg_swid_attr_tag_inv.h"
#include "tcg/swid/tcg_swid_attr_tag_id_inv.h"
#include "swid/swid_inventory.h"
#include "swid/swid_error.h"
#include <tncif_pa_subtypes.h>
#include <pen/pen.h>
#include <utils/debug.h>
/* IMC definitions */
static const char imc_name[] = "SWID";
static pen_type_t msg_types[] = {
{ PEN_TCG, PA_SUBTYPE_TCG_SWID }
};
static imc_agent_t *imc_swid;
/**
* see section 3.8.1 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id,
TNC_Version min_version,
TNC_Version max_version,
TNC_Version *actual_version)
{
if (imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name);
return TNC_RESULT_ALREADY_INITIALIZED;
}
imc_swid = imc_agent_create(imc_name, msg_types, countof(msg_types),
imc_id, actual_version);
if (!imc_swid)
{
return TNC_RESULT_FATAL;
}
if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1)
{
DBG1(DBG_IMC, "no common IF-IMC version");
return TNC_RESULT_NO_COMMON_VERSION;
}
return TNC_RESULT_SUCCESS;
}
/**
* see section 3.8.2 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_ConnectionState new_state)
{
imc_state_t *state;
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
switch (new_state)
{
case TNC_CONNECTION_STATE_CREATE:
state = imc_swid_state_create(connection_id);
return imc_swid->create_state(imc_swid, state);
case TNC_CONNECTION_STATE_HANDSHAKE:
if (imc_swid->change_state(imc_swid, connection_id, new_state,
&state) != TNC_RESULT_SUCCESS)
{
return TNC_RESULT_FATAL;
}
state->set_result(state, imc_id,
TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
return TNC_RESULT_SUCCESS;
case TNC_CONNECTION_STATE_DELETE:
return imc_swid->delete_state(imc_swid, connection_id);
default:
return imc_swid->change_state(imc_swid, connection_id,
new_state, NULL);
}
}
/**
* see section 3.8.3 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
imc_state_t *state;
imc_msg_t *out_msg;
pa_tnc_attr_t *attr;
seg_contract_t *contract;
seg_contract_manager_t *contracts;
size_t max_attr_size = SWID_MAX_ATTR_SIZE;
size_t max_seg_size;
char buf[BUF_LEN];
TNC_Result result = TNC_RESULT_SUCCESS;
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_swid->get_state(imc_swid, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
/* Determine maximum PA-TNC attribute segment size */
max_seg_size = state->get_max_msg_len(state) - PA_TNC_HEADER_SIZE
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_SEG_ENV_HEADER;
/* Announce support of PA-TNC segmentation to IMV */
contract = seg_contract_create(msg_types[0], max_attr_size, max_seg_size,
TRUE, imc_id, TRUE);
contract->get_info_string(contract, buf, BUF_LEN, TRUE);
DBG2(DBG_IMC, "%s", buf);
contracts = state->get_contracts(state);
contracts->add_contract(contracts, contract);
attr = tcg_seg_attr_max_size_create(max_attr_size, max_seg_size, TRUE);
/* send PA-TNC message with the excl flag not set */
out_msg = imc_msg_create(imc_swid, state, connection_id, imc_id,
TNC_IMVID_ANY, msg_types[0]);
out_msg->add_attribute(out_msg, attr);
result = out_msg->send(out_msg, FALSE);
out_msg->destroy(out_msg);
return result;
}
/**
* Add one or multiple SWID Inventory attributes to the send queue
*/
static bool add_swid_inventory(imc_state_t *state, imc_msg_t *msg,
uint32_t request_id, bool full_tags,
swid_inventory_t *targets)
{
pa_tnc_attr_t *attr, *attr_error;
imc_swid_state_t *swid_state;
swid_inventory_t *swid_inventory;
char *swid_directory;
uint32_t eid_epoch;
bool swid_pretty, swid_full;
enumerator_t *enumerator;
swid_directory = lib->settings->get_str(lib->settings,
"%s.plugins.imc-swid.swid_directory",
SWID_DIRECTORY, lib->ns);
swid_pretty = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-swid.swid_pretty",
FALSE, lib->ns);
swid_full = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-swid.swid_full",
FALSE, lib->ns);
swid_inventory = swid_inventory_create(full_tags);
if (!swid_inventory->collect(swid_inventory, swid_directory, targets,
swid_pretty, swid_full))
{
swid_inventory->destroy(swid_inventory);
attr_error = swid_error_create(TCG_SWID_ERROR, request_id,
0, "error in SWID tag collection");
msg->add_attribute(msg, attr_error);
return FALSE;
}
DBG1(DBG_IMC, "collected %d SWID tag%s%s",
swid_inventory->get_count(swid_inventory), full_tags ? "" : " ID",
swid_inventory->get_count(swid_inventory) == 1 ? "" : "s");
swid_state = (imc_swid_state_t*)state;
eid_epoch = swid_state->get_eid_epoch(swid_state);
if (full_tags)
{
tcg_swid_attr_tag_inv_t *swid_attr;
swid_tag_t *tag;
/* Send a TCG SWID Tag Inventory attribute */
attr = tcg_swid_attr_tag_inv_create(request_id, eid_epoch, 1);
swid_attr = (tcg_swid_attr_tag_inv_t*)attr;
enumerator = swid_inventory->create_enumerator(swid_inventory);
while (enumerator->enumerate(enumerator, &tag))
{
swid_attr->add(swid_attr, tag->get_ref(tag));
}
enumerator->destroy(enumerator);
}
else
{
tcg_swid_attr_tag_id_inv_t *swid_id_attr;
swid_tag_id_t *tag_id;
/* Send a TCG SWID Tag ID Inventory attribute */
attr = tcg_swid_attr_tag_id_inv_create(request_id, eid_epoch, 1);
swid_id_attr = (tcg_swid_attr_tag_id_inv_t*)attr;
enumerator = swid_inventory->create_enumerator(swid_inventory);
while (enumerator->enumerate(enumerator, &tag_id))
{
swid_id_attr->add(swid_id_attr, tag_id->get_ref(tag_id));
}
enumerator->destroy(enumerator);
}
msg->add_attribute(msg, attr);
swid_inventory->destroy(swid_inventory);
return TRUE;
}
static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg)
{
imc_msg_t *out_msg;
pa_tnc_attr_t *attr;
enumerator_t *enumerator;
pen_type_t type;
TNC_Result result;
bool fatal_error = FALSE;
/* generate an outgoing PA-TNC message - we might need it */
out_msg = imc_msg_create_as_reply(in_msg);
/* parse received PA-TNC message and handle local and remote errors */
result = in_msg->receive(in_msg, out_msg, &fatal_error);
if (result != TNC_RESULT_SUCCESS)
{
out_msg->destroy(out_msg);
return result;
}
/* analyze PA-TNC attributes */
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
tcg_swid_attr_req_t *attr_req;
uint8_t flags;
uint32_t request_id;
bool full_tags;
swid_inventory_t *targets;
type = attr->get_type(attr);
if (type.vendor_id != PEN_TCG || type.type != TCG_SWID_REQUEST)
{
continue;
}
attr_req = (tcg_swid_attr_req_t*)attr;
flags = attr_req->get_flags(attr_req);
request_id = attr_req->get_request_id(attr_req);
targets = attr_req->get_targets(attr_req);
if (flags & (TCG_SWID_ATTR_REQ_FLAG_S | TCG_SWID_ATTR_REQ_FLAG_C))
{
attr = swid_error_create(TCG_SWID_SUBSCRIPTION_DENIED, request_id,
0, "no subscription available yet");
out_msg->add_attribute(out_msg, attr);
break;
}
full_tags = (flags & TCG_SWID_ATTR_REQ_FLAG_R) == 0;
if (!add_swid_inventory(state, out_msg, request_id, full_tags, targets))
{
break;
}
}
enumerator->destroy(enumerator);
if (fatal_error)
{
result = TNC_RESULT_FATAL;
}
else
{
/* send PA-TNC message with the EXCL flag set */
result = out_msg->send(out_msg, TRUE);
}
out_msg->destroy(out_msg);
return result;
}
/**
* see section 3.8.4 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_MessageType msg_type)
{
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_swid->get_state(imc_swid, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_data(imc_swid, state, connection_id, msg_type,
chunk_create(msg, msg_len));
result = receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
* see section 3.8.6 of TCG TNC IF-IMV Specification 1.3
*/
TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
{
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_swid->get_state(imc_swid, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_long_data(imc_swid, state, connection_id,
src_imv_id, dst_imc_id,msg_vid, msg_subtype,
chunk_create(msg, msg_len));
result =receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
* see section 3.8.7 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_BatchEnding(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
return TNC_RESULT_SUCCESS;
}
/**
* see section 3.8.8 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_Terminate(TNC_IMCID imc_id)
{
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
imc_swid->destroy(imc_swid);
imc_swid = NULL;
return TNC_RESULT_SUCCESS;
}
/**
* see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id,
TNC_TNCC_BindFunctionPointer bind_function)
{
if (!imc_swid)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
return imc_swid->bind_functions(imc_swid, bind_function);
}
src/libimcv/plugins/imc_swid/imc_swid_state.c
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@@ -1,203 +0,0 @@
/*
* Copyright (C) 2013-2014 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "imc_swid_state.h"
#include <tncif_names.h>
#include <utils/debug.h>
typedef struct private_imc_swid_state_t private_imc_swid_state_t;
/**
* Private data of an imc_swid_state_t object.
*/
struct private_imc_swid_state_t {
/**
* Public members of imc_swid_state_t
*/
imc_swid_state_t public;
/**
* TNCCS connection ID
*/
TNC_ConnectionID connection_id;
/**
* TNCCS connection state
*/
TNC_ConnectionState state;
/**
* Assessment/Evaluation Result
*/
TNC_IMV_Evaluation_Result result;
/**
* Does the TNCCS connection support long message types?
*/
bool has_long;
/**
* Does the TNCCS connection support exclusive delivery?
*/
bool has_excl;
/**
* Maximum PA-TNC message size for this TNCCS connection
*/
uint32_t max_msg_len;
/**
* PA-TNC attribute segmentation contracts associated with TNCCS connection
*/
seg_contract_manager_t *contracts;
/**
* Event ID Epoch
*/
uint32_t eid_epoch;
};
METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
private_imc_swid_state_t *this)
{
return this->connection_id;
}
METHOD(imc_state_t, has_long, bool,
private_imc_swid_state_t *this)
{
return this->has_long;
}
METHOD(imc_state_t, has_excl, bool,
private_imc_swid_state_t *this)
{
return this->has_excl;
}
METHOD(imc_state_t, set_flags, void,
private_imc_swid_state_t *this, bool has_long, bool has_excl)
{
this->has_long = has_long;
this->has_excl = has_excl;
}
METHOD(imc_state_t, set_max_msg_len, void,
private_imc_swid_state_t *this, uint32_t max_msg_len)
{
this->max_msg_len = max_msg_len;
}
METHOD(imc_state_t, get_max_msg_len, uint32_t,
private_imc_swid_state_t *this)
{
return this->max_msg_len;
}
METHOD(imc_state_t, get_contracts, seg_contract_manager_t*,
private_imc_swid_state_t *this)
{
return this->contracts;
}
METHOD(imc_state_t, change_state, void,
private_imc_swid_state_t *this, TNC_ConnectionState new_state)
{
this->state = new_state;
}
METHOD(imc_state_t, set_result, void,
private_imc_swid_state_t *this, TNC_IMCID id,
TNC_IMV_Evaluation_Result result)
{
this->result = result;
}
METHOD(imc_state_t, get_result, bool,
private_imc_swid_state_t *this, TNC_IMCID id,
TNC_IMV_Evaluation_Result *result)
{
if (result)
{
*result = this->result;
}
return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
}
METHOD(imc_state_t, destroy, void,
private_imc_swid_state_t *this)
{
this->contracts->destroy(this->contracts);
free(this);
}
METHOD(imc_swid_state_t, get_eid_epoch, uint32_t,
private_imc_swid_state_t *this)
{
return this->eid_epoch;
}
/**
* Described in header.
*/
imc_state_t *imc_swid_state_create(TNC_ConnectionID connection_id)
{
private_imc_swid_state_t *this;
uint32_t eid_epoch;
nonce_gen_t *ng;
ng = lib->crypto->create_nonce_gen(lib->crypto);
if (!ng || !ng->get_nonce(ng, 4, (uint8_t*)&eid_epoch))
{
DBG1(DBG_TNC, "failed to generate random EID epoch value");
DESTROY_IF(ng);
return NULL;
}
ng->destroy(ng);
DBG1(DBG_IMC, "creating random EID epoch 0x%08x", eid_epoch);
INIT(this,
.public = {
.interface = {
.get_connection_id = _get_connection_id,
.has_long = _has_long,
.has_excl = _has_excl,
.set_flags = _set_flags,
.set_max_msg_len = _set_max_msg_len,
.get_max_msg_len = _get_max_msg_len,
.get_contracts = _get_contracts,
.change_state = _change_state,
.set_result = _set_result,
.get_result = _get_result,
.destroy = _destroy,
},
.get_eid_epoch = _get_eid_epoch,
},
.state = TNC_CONNECTION_STATE_CREATE,
.result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
.connection_id = connection_id,
.contracts = seg_contract_manager_create(),
.eid_epoch = eid_epoch,
);
return &this->public.interface;
}
src/libimcv/plugins/imc_swid/imc_swid_state.h
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@@ -1,58 +0,0 @@
/*
* Copyright (C) 2013 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup imc_swid imc_swid
* @ingroup libimcv_plugins
*
* @defgroup imc_swid_state_t imc_swid_state
* @{ @ingroup imc_swid
*/
#ifndef IMC_SWID_STATE_H_
#define IMC_SWID_STATE_H_
#include <imc/imc_state.h>
#include <library.h>
typedef struct imc_swid_state_t imc_swid_state_t;
/**
* Internal state of an imc_swid_t connection instance
*/
struct imc_swid_state_t {
/**
* imc_state_t interface
*/
imc_state_t interface;
/**
* Get Event ID Epoch
*
* @return Event ID Epoch
*/
uint32_t (*get_eid_epoch)(imc_swid_state_t *this);
};
/**
* Create an imc_swid_state_t instance
*
* @param id connection ID
*/
imc_state_t* imc_swid_state_create(TNC_ConnectionID id);
#endif /** IMC_SWID_STATE_H_ @}*/
src/libimcv/plugins/imc_swid/strongswan.org__strongSwan.swidtag.in
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@@ -1,11 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<SoftwareIdentity
name="strongSwan"
tagId="strongSwan-@VERSION_MAJOR@-@VERSION_MINOR@-@VERSION_BUILD@@VERSION_REVIEW@"
version="@VERSION_MAJOR@.@VERSION_MINOR@.@VERSION_BUILD@@VERSION_REVIEW@" versionScheme="alphanumeric"
xmlns="http://standards.iso.org/iso/19770/-2/2015/schema.xsd">
<Entity
name="strongSwan Project"
regid="strongswan.org"
role="softwareCreator licensor tagCreator"/>
</SoftwareIdentity>
src/libimcv/plugins/imv_swid/Makefile.am
-21
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@@ -1,21 +0,0 @@
AM_CPPFLAGS = \
-I$(top_srcdir)/src/libstrongswan \
-I$(top_srcdir)/src/libtncif \
-I$(top_srcdir)/src/libtpmtss \
-I$(top_srcdir)/src/libimcv
AM_CFLAGS = \
$(PLUGIN_CFLAGS) $(json_CFLAGS)
imcv_LTLIBRARIES = imv-swid.la
imv_swid_la_LIBADD = \
$(top_builddir)/src/libimcv/libimcv.la \
$(top_builddir)/src/libstrongswan/libstrongswan.la \
$(json_LIBS)
imv_swid_la_SOURCES = \
imv_swid.c imv_swid_state.h imv_swid_state.c \
imv_swid_agent.h imv_swid_agent.c
imv_swid_la_LDFLAGS = -module -avoid-version -no-undefined
src/libimcv/plugins/imv_swid/imv_swid.c
-24
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@@ -1,24 +0,0 @@
/*
* Copyright (C) 2013 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "imv_swid_agent.h"
static const char imv_name[] = "SWID";
static const imv_agent_create_t imv_agent_create = imv_swid_agent_create;
/* include generic TGC TNC IF-IMV API code below */
#include <imv/imv_if.h>
src/libimcv/plugins/imv_swid/imv_swid_agent.c
-727
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@@ -1,727 +0,0 @@
/*
* Copyright (C) 2013-2017 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include "imv_swid_agent.h"
#include "imv_swid_state.h"
#include <imcv.h>
#include <imv/imv_agent.h>
#include <imv/imv_msg.h>
#include <ietf/ietf_attr_pa_tnc_error.h>
#include "rest/rest.h"
#include "tcg/seg/tcg_seg_attr_max_size.h"
#include "tcg/seg/tcg_seg_attr_seg_env.h"
#include "tcg/swid/tcg_swid_attr_req.h"
#include "tcg/swid/tcg_swid_attr_tag_inv.h"
#include "tcg/swid/tcg_swid_attr_tag_id_inv.h"
#include "swid/swid_error.h"
#include "swid/swid_inventory.h"
#include <tncif_names.h>
#include <tncif_pa_subtypes.h>
#include <pen/pen.h>
#include <utils/debug.h>
#include <bio/bio_reader.h>
typedef struct private_imv_swid_agent_t private_imv_swid_agent_t;
/* Subscribed PA-TNC message subtypes */
static pen_type_t msg_types[] = {
{ PEN_TCG, PA_SUBTYPE_TCG_SWID }
};
/**
* Flag set when corresponding attribute has been received
*/
enum imv_swid_attr_t {
IMV_SWID_ATTR_TAG_INV = (1<<0),
IMV_SWID_ATTR_TAG_ID_INV = (1<<1)
};
/**
* Private data of an imv_swid_agent_t object.
*/
struct private_imv_swid_agent_t {
/**
* Public members of imv_swid_agent_t
*/
imv_agent_if_t public;
/**
* IMV agent responsible for generic functions
*/
imv_agent_t *agent;
/**
* REST API to strongTNC manager
*/
rest_t *rest_api;
};
METHOD(imv_agent_if_t, bind_functions, TNC_Result,
private_imv_swid_agent_t *this, TNC_TNCS_BindFunctionPointer bind_function)
{
return this->agent->bind_functions(this->agent, bind_function);
}
METHOD(imv_agent_if_t, notify_connection_change, TNC_Result,
private_imv_swid_agent_t *this, TNC_ConnectionID id,
TNC_ConnectionState new_state)
{
imv_state_t *state;
switch (new_state)
{
case TNC_CONNECTION_STATE_CREATE:
state = imv_swid_state_create(id);
return this->agent->create_state(this->agent, state);
case TNC_CONNECTION_STATE_DELETE:
return this->agent->delete_state(this->agent, id);
default:
return this->agent->change_state(this->agent, id, new_state, NULL);
}
}
/**
* Process a received message
*/
static TNC_Result receive_msg(private_imv_swid_agent_t *this,
imv_state_t *state, imv_msg_t *in_msg)
{
imv_swid_state_t *swid_state;
imv_msg_t *out_msg;
enumerator_t *enumerator;
pa_tnc_attr_t *attr;
TNC_Result result;
bool fatal_error = FALSE;
/* generate an outgoing PA-TNC message - we might need it */
out_msg = imv_msg_create_as_reply(in_msg);
/* parse received PA-TNC message and handle local and remote errors */
result = in_msg->receive(in_msg, out_msg, &fatal_error);
if (result != TNC_RESULT_SUCCESS)
{
out_msg->destroy(out_msg);
return result;
}
swid_state = (imv_swid_state_t*)state;
/* analyze PA-TNC attributes */
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
uint32_t request_id = 0, last_eid, eid_epoch;
swid_inventory_t *inventory;
pen_type_t type;
type = attr->get_type(attr);
if (type.vendor_id == PEN_IETF && type.type == IETF_ATTR_PA_TNC_ERROR)
{
ietf_attr_pa_tnc_error_t *error_attr;
pen_type_t error_code;
chunk_t msg_info, description;
bio_reader_t *reader;
uint32_t max_attr_size;
bool success;
error_attr = (ietf_attr_pa_tnc_error_t*)attr;
error_code = error_attr->get_error_code(error_attr);
if (error_code.vendor_id == PEN_TCG)
{
fatal_error = TRUE;
msg_info = error_attr->get_msg_info(error_attr);
reader = bio_reader_create(msg_info);
success = reader->read_uint32(reader, &request_id);
DBG1(DBG_IMV, "received TCG error '%N' for request %d",
swid_error_code_names, error_code.type, request_id);
if (!success)
{
reader->destroy(reader);
continue;
}
if (error_code.type == TCG_SWID_RESPONSE_TOO_LARGE)
{
if (!reader->read_uint32(reader, &max_attr_size))
{
reader->destroy(reader);
continue;
}
DBG1(DBG_IMV, " maximum PA-TNC attribute size is %u bytes",
max_attr_size);
}
description = reader->peek(reader);
if (description.len)
{
DBG1(DBG_IMV, " description: %.*s", description.len,
description.ptr);
}
reader->destroy(reader);
}
}
else if (type.vendor_id != PEN_TCG)
{
continue;
}
switch (type.type)
{
case TCG_SWID_TAG_ID_INVENTORY:
{
tcg_swid_attr_tag_id_inv_t *attr_cast;
uint32_t missing;
int tag_id_count;
state->set_action_flags(state, IMV_SWID_ATTR_TAG_ID_INV);
attr_cast = (tcg_swid_attr_tag_id_inv_t*)attr;
request_id = attr_cast->get_request_id(attr_cast);
last_eid = attr_cast->get_last_eid(attr_cast, &eid_epoch);
inventory = attr_cast->get_inventory(attr_cast);
tag_id_count = inventory->get_count(inventory);
missing = attr_cast->get_tag_id_count(attr_cast);
swid_state->set_missing(swid_state, missing);
DBG2(DBG_IMV, "received SWID tag ID inventory with %d item%s "
"for request %d at eid %d of epoch 0x%08x, %d item%s to "
"follow", tag_id_count, (tag_id_count == 1) ? "" : "s",
request_id, last_eid, eid_epoch, missing,
(missing == 1) ? "" : "s");
if (request_id == swid_state->get_request_id(swid_state))
{
swid_state->set_swid_inventory(swid_state, inventory);
swid_state->set_count(swid_state, tag_id_count, 0,
in_msg->get_src_id(in_msg));
}
else
{
DBG1(DBG_IMV, "no workitem found for SWID tag ID inventory "
"with request ID %d", request_id);
}
attr_cast->clear_inventory(attr_cast);
break;
}
case TCG_SWID_TAG_INVENTORY:
{
tcg_swid_attr_tag_inv_t *attr_cast;
swid_tag_t *tag;
chunk_t tag_encoding;
json_object *jobj, *jarray, *jstring;
char *tag_str;
uint32_t missing;
int tag_count;
enumerator_t *e;
state->set_action_flags(state, IMV_SWID_ATTR_TAG_INV);
attr_cast = (tcg_swid_attr_tag_inv_t*)attr;
request_id = attr_cast->get_request_id(attr_cast);
last_eid = attr_cast->get_last_eid(attr_cast, &eid_epoch);
inventory = attr_cast->get_inventory(attr_cast);
tag_count = inventory->get_count(inventory);
missing = attr_cast->get_tag_count(attr_cast);
swid_state->set_missing(swid_state, missing);
DBG2(DBG_IMV, "received SWID tag inventory with %d item%s for "
"request %d at eid %d of epoch 0x%08x, %d item%s to follow",
tag_count, (tag_count == 1) ? "" : "s", request_id,
last_eid, eid_epoch, missing, (missing == 1) ? "" : "s");
if (request_id == swid_state->get_request_id(swid_state))
{
swid_state->set_count(swid_state, 0, tag_count,
in_msg->get_src_id(in_msg));
if (this->rest_api)
{
jobj = json_object_new_object();
jarray = json_object_new_array();
json_object_object_add(jobj, "data", jarray);
e = inventory->create_enumerator(inventory);
while (e->enumerate(e, &tag))
{
tag_encoding = tag->get_encoding(tag);
tag_str = strndup(tag_encoding.ptr, tag_encoding.len);
DBG3(DBG_IMV, "%s", tag_str);
jstring = json_object_new_string(tag_str);
json_object_array_add(jarray, jstring);
free(tag_str);
}
e->destroy(e);
if (this->rest_api->post(this->rest_api,
"swid/add-tags/", jobj, NULL) != SUCCESS)
{
DBG1(DBG_IMV, "error in REST API add-tags request");
}
json_object_put(jobj);
}
}
else
{
DBG1(DBG_IMV, "no workitem found for SWID tag inventory "
"with request ID %d", request_id);
}
attr_cast->clear_inventory(attr_cast);
break;
}
default:
break;
}
}
enumerator->destroy(enumerator);
if (fatal_error)
{
state->set_recommendation(state,
TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
TNC_IMV_EVALUATION_RESULT_ERROR);
result = out_msg->send_assessment(out_msg);
if (result == TNC_RESULT_SUCCESS)
{
result = this->agent->provide_recommendation(this->agent, state);
}
}
else
{
/* send PA-TNC message with the EXCL flag set */
result = out_msg->send(out_msg, TRUE);
}
out_msg->destroy(out_msg);
return result;
}
METHOD(imv_agent_if_t, receive_message, TNC_Result,
private_imv_swid_agent_t *this, TNC_ConnectionID id,
TNC_MessageType msg_type, chunk_t msg)
{
imv_state_t *state;
imv_msg_t *in_msg;
TNC_Result result;
if (!this->agent->get_state(this->agent, id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imv_msg_create_from_data(this->agent, state, id, msg_type, msg);
result = receive_msg(this, state, in_msg);
in_msg->destroy(in_msg);
return result;
}
METHOD(imv_agent_if_t, receive_message_long, TNC_Result,
private_imv_swid_agent_t *this, TNC_ConnectionID id,
TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id,
TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype, chunk_t msg)
{
imv_state_t *state;
imv_msg_t *in_msg;
TNC_Result result;
if (!this->agent->get_state(this->agent, id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imv_msg_create_from_long_data(this->agent, state, id,
src_imc_id, dst_imv_id, msg_vid, msg_subtype, msg);
result = receive_msg(this, state, in_msg);
in_msg->destroy(in_msg);
return result;
}
METHOD(imv_agent_if_t, batch_ending, TNC_Result,
private_imv_swid_agent_t *this, TNC_ConnectionID id)
{
imv_msg_t *out_msg;
imv_state_t *state;
imv_session_t *session;
imv_workitem_t *workitem;
imv_swid_state_t *swid_state;
imv_swid_handshake_state_t handshake_state;
pa_tnc_attr_t *attr;
TNC_IMVID imv_id;
TNC_Result result = TNC_RESULT_SUCCESS;
bool no_workitems = TRUE;
uint32_t request_id, received;
uint8_t flags;
enumerator_t *enumerator;
if (!this->agent->get_state(this->agent, id, &state))
{
return TNC_RESULT_FATAL;
}
swid_state = (imv_swid_state_t*)state;
handshake_state = swid_state->get_handshake_state(swid_state);
session = state->get_session(state);
imv_id = this->agent->get_id(this->agent);
if (handshake_state == IMV_SWID_STATE_END)
{
return TNC_RESULT_SUCCESS;
}
/* Create an empty out message - we might need it */
out_msg = imv_msg_create(this->agent, state, id, imv_id,
swid_state->get_imc_id(swid_state),
msg_types[0]);
if (!imcv_db)
{
DBG2(DBG_IMV, "no workitems available - no evaluation possible");
state->set_recommendation(state,
TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
result = out_msg->send_assessment(out_msg);
out_msg->destroy(out_msg);
swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END);
if (result != TNC_RESULT_SUCCESS)
{
return result;
}
return this->agent->provide_recommendation(this->agent, state);
}
/* Look for SWID tag workitem and create SWID tag request */
if (handshake_state == IMV_SWID_STATE_INIT &&
session->get_policy_started(session))
{
size_t max_attr_size = SWID_MAX_ATTR_SIZE;
size_t max_seg_size;
seg_contract_t *contract;
seg_contract_manager_t *contracts;
char buf[BUF_LEN];
enumerator = session->create_workitem_enumerator(session);
if (enumerator)
{
while (enumerator->enumerate(enumerator, &workitem))
{
if (workitem->get_imv_id(workitem) != TNC_IMVID_ANY ||
workitem->get_type(workitem) != IMV_WORKITEM_SWID_TAGS)
{
continue;
}
flags = TCG_SWID_ATTR_REQ_FLAG_NONE;
if (strchr(workitem->get_arg_str(workitem), 'R'))
{
flags |= TCG_SWID_ATTR_REQ_FLAG_R;
}
if (strchr(workitem->get_arg_str(workitem), 'S'))
{
flags |= TCG_SWID_ATTR_REQ_FLAG_S;
}
if (strchr(workitem->get_arg_str(workitem), 'C'))
{
flags |= TCG_SWID_ATTR_REQ_FLAG_C;
}
/* Determine maximum PA-TNC attribute segment size */
max_seg_size = state->get_max_msg_len(state)
- PA_TNC_HEADER_SIZE
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_SEG_ENV_HEADER;
/* Announce support of PA-TNC segmentation to IMC */
contract = seg_contract_create(msg_types[0], max_attr_size,
max_seg_size, TRUE, imv_id, FALSE);
contract->get_info_string(contract, buf, BUF_LEN, TRUE);
DBG2(DBG_IMV, "%s", buf);
contracts = state->get_contracts(state);
contracts->add_contract(contracts, contract);
attr = tcg_seg_attr_max_size_create(max_attr_size,
max_seg_size, TRUE);
out_msg->add_attribute(out_msg, attr);
/* Issue a SWID request */
request_id = workitem->get_id(workitem);
swid_state->set_request_id(swid_state, request_id);
attr = tcg_swid_attr_req_create(flags, request_id, 0);
out_msg->add_attribute(out_msg, attr);
workitem->set_imv_id(workitem, imv_id);
no_workitems = FALSE;
DBG2(DBG_IMV, "IMV %d issues SWID request %d",
imv_id, request_id);
break;
}
enumerator->destroy(enumerator);
if (no_workitems)
{
DBG2(DBG_IMV, "IMV %d has no workitems - "
"no evaluation requested", imv_id);
state->set_recommendation(state,
TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
}
handshake_state = IMV_SWID_STATE_WORKITEMS;
swid_state->set_handshake_state(swid_state, handshake_state);
}
}
received = state->get_action_flags(state);
if (handshake_state == IMV_SWID_STATE_WORKITEMS &&
(received & (IMV_SWID_ATTR_TAG_INV|IMV_SWID_ATTR_TAG_ID_INV)) &&
swid_state->get_missing(swid_state) == 0)
{
TNC_IMV_Evaluation_Result eval;
TNC_IMV_Action_Recommendation rec;
char result_str[BUF_LEN], *error_str = "", *command;
char *target, *separator;
int tag_id_count, tag_count, i;
chunk_t tag_creator, unique_sw_id;
json_object *jrequest, *jresponse, *jvalue;
tcg_swid_attr_req_t *cast_attr;
swid_tag_id_t *tag_id;
status_t status = SUCCESS;
if (this->rest_api && (received & IMV_SWID_ATTR_TAG_ID_INV))
{
if (asprintf(&command, "sessions/%d/swid-measurement/",
session->get_session_id(session, NULL, NULL)) < 0)
{
error_str = "allocation of command string failed";
status = FAILED;
}
else
{
jrequest = swid_state->get_swid_inventory(swid_state);
status = this->rest_api->post(this->rest_api, command,
jrequest, &jresponse);
if (status == FAILED)
{
error_str = "error in REST API swid-measurement request";
}
free(command);
}
}
switch (status)
{
case SUCCESS:
enumerator = session->create_workitem_enumerator(session);
while (enumerator->enumerate(enumerator, &workitem))
{
if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS)
{
swid_state->get_count(swid_state, &tag_id_count,
&tag_count);
snprintf(result_str, BUF_LEN, "received inventory of "
"%d SWID tag ID%s and %d SWID tag%s",
tag_id_count, (tag_id_count == 1) ? "" : "s",
tag_count, (tag_count == 1) ? "" : "s");
session->remove_workitem(session, enumerator);
eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT;
rec = workitem->set_result(workitem, result_str, eval);
state->update_recommendation(state, rec, eval);
imcv_db->finalize_workitem(imcv_db, workitem);
workitem->destroy(workitem);
break;
}
}
enumerator->destroy(enumerator);
break;
case NEED_MORE:
if (received & IMV_SWID_ATTR_TAG_INV)
{
error_str = "not all requested SWID tags were received";
status = FAILED;
json_object_put(jresponse);
break;
}
if (json_object_get_type(jresponse) != json_type_array)
{
error_str = "response was not a json_array";
status = FAILED;
json_object_put(jresponse);
break;
}
/* Create a TCG SWID Request attribute */
attr = tcg_swid_attr_req_create(TCG_SWID_ATTR_REQ_FLAG_NONE,
swid_state->get_request_id(swid_state), 0);
tag_id_count = json_object_array_length(jresponse);
DBG1(DBG_IMV, "%d SWID tag target%s", tag_id_count,
(tag_id_count == 1) ? "" : "s");
swid_state->set_missing(swid_state, tag_id_count);
for (i = 0; i < tag_id_count; i++)
{
jvalue = json_object_array_get_idx(jresponse, i);
if (json_object_get_type(jvalue) != json_type_string)
{
error_str = "json_string element expected in json_array";
status = FAILED;
json_object_put(jresponse);
break;
}
target = (char*)json_object_get_string(jvalue);
DBG1(DBG_IMV, " %s", target);
/* Separate target into tag_creator and unique_sw_id */
separator = strstr(target, "__");
if (!separator)
{
error_str = "separation of regid from "
"unique software ID failed";
break;
}
tag_creator = chunk_create(target, separator - target);
separator += 2;
unique_sw_id = chunk_create(separator, strlen(target) -
tag_creator.len - 2);
tag_id = swid_tag_id_create(tag_creator, unique_sw_id,
chunk_empty);
cast_attr = (tcg_swid_attr_req_t*)attr;
cast_attr->add_target(cast_attr, tag_id);
}
json_object_put(jresponse);
out_msg->add_attribute(out_msg, attr);
break;
case FAILED:
default:
break;
}
if (status == FAILED)
{
enumerator = session->create_workitem_enumerator(session);
while (enumerator->enumerate(enumerator, &workitem))
{
if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS)
{
session->remove_workitem(session, enumerator);
eval = TNC_IMV_EVALUATION_RESULT_ERROR;
rec = workitem->set_result(workitem, error_str, eval);
state->update_recommendation(state, rec, eval);
imcv_db->finalize_workitem(imcv_db, workitem);
workitem->destroy(workitem);
break;
}
}
enumerator->destroy(enumerator);
}
}
/* finalized all workitems ? */
if (handshake_state == IMV_SWID_STATE_WORKITEMS &&
session->get_workitem_count(session, imv_id) == 0)
{
result = out_msg->send_assessment(out_msg);
out_msg->destroy(out_msg);
swid_state->set_handshake_state(swid_state, IMV_SWID_STATE_END);
if (result != TNC_RESULT_SUCCESS)
{
return result;
}
return this->agent->provide_recommendation(this->agent, state);
}
/* send non-empty PA-TNC message with excl flag not set */
if (out_msg->get_attribute_count(out_msg))
{
result = out_msg->send(out_msg, FALSE);
}
out_msg->destroy(out_msg);
return result;
}
METHOD(imv_agent_if_t, solicit_recommendation, TNC_Result,
private_imv_swid_agent_t *this, TNC_ConnectionID id)
{
imv_state_t *state;
if (!this->agent->get_state(this->agent, id, &state))
{
return TNC_RESULT_FATAL;
}
return this->agent->provide_recommendation(this->agent, state);
}
METHOD(imv_agent_if_t, destroy, void,
private_imv_swid_agent_t *this)
{
DESTROY_IF(this->rest_api);
this->agent->destroy(this->agent);
free(this);
}
/**
* Described in header.
*/
imv_agent_if_t *imv_swid_agent_create(const char *name, TNC_IMVID id,
TNC_Version *actual_version)
{
private_imv_swid_agent_t *this;
imv_agent_t *agent;
char *rest_api_uri;
u_int rest_api_timeout;
agent = imv_agent_create(name, msg_types, countof(msg_types), id,
actual_version);
if (!agent)
{
return NULL;
}
agent->add_non_fatal_attr_type(agent,
pen_type_create(PEN_TCG, TCG_SEG_MAX_ATTR_SIZE_REQ));
INIT(this,
.public = {
.bind_functions = _bind_functions,
.notify_connection_change = _notify_connection_change,
.receive_message = _receive_message,
.receive_message_long = _receive_message_long,
.batch_ending = _batch_ending,
.solicit_recommendation = _solicit_recommendation,
.destroy = _destroy,
},
.agent = agent,
);
rest_api_uri = lib->settings->get_str(lib->settings,
"%s.plugins.imv-swid.rest_api_uri", NULL, lib->ns);
rest_api_timeout = lib->settings->get_int(lib->settings,
"%s.plugins.imv-swid.rest_api_timeout", 120, lib->ns);
if (rest_api_uri)
{
this->rest_api = rest_create(rest_api_uri, rest_api_timeout);
}
return &this->public;
}
src/libimcv/plugins/imv_swid/imv_swid_agent.h
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@@ -1,36 +0,0 @@
/*
* Copyright (C) 2013 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup imv_swid_agent_t imv_swid_agent
* @{ @ingroup imv_swid
*/
#ifndef IMV_SWID_AGENT_H_
#define IMV_SWID_AGENT_H_
#include <imv/imv_agent_if.h>
/**
* Creates an SWID IMV agent
*
* @param name Name of the IMV
* @param id ID of the IMV
* @param actual_version TNC IF-IMV version
*/
imv_agent_if_t* imv_swid_agent_create(const char* name, TNC_IMVID id,
TNC_Version *actual_version);
#endif /** IMV_SWID_AGENT_H_ @}*/
src/libimcv/plugins/imv_swid/imv_swid_state.c
-417
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@@ -1,417 +0,0 @@
/*
* Copyright (C) 2013-2017 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "imv_swid_state.h"
#include <imv/imv_lang_string.h>
#include <imv/imv_reason_string.h>
#include <imv/imv_remediation_string.h>
#include <swid/swid_tag_id.h>
#include <tncif_policy.h>
#include <utils/lexparser.h>
#include <utils/debug.h>
typedef struct private_imv_swid_state_t private_imv_swid_state_t;
/**
* Private data of an imv_swid_state_t object.
*/
struct private_imv_swid_state_t {
/**
* Public members of imv_swid_state_t
*/
imv_swid_state_t public;
/**
* TNCCS connection ID
*/
TNC_ConnectionID connection_id;
/**
* TNCCS connection state
*/
TNC_ConnectionState state;
/**
* Does the TNCCS connection support long message types?
*/
bool has_long;
/**
* Does the TNCCS connection support exclusive delivery?
*/
bool has_excl;
/**
* Maximum PA-TNC message size for this TNCCS connection
*/
uint32_t max_msg_len;
/**
* Flags set for completed actions
*/
uint32_t action_flags;
/**
* IMV database session associated with TNCCS connection
*/
imv_session_t *session;
/**
* PA-TNC attribute segmentation contracts associated with TNCCS connection
*/
seg_contract_manager_t *contracts;
/**
* IMV action recommendation
*/
TNC_IMV_Action_Recommendation rec;
/**
* IMV evaluation result
*/
TNC_IMV_Evaluation_Result eval;
/**
* IMV Scanner handshake state
*/
imv_swid_handshake_state_t handshake_state;
/**
* TNC Reason String
*/
imv_reason_string_t *reason_string;
/**
* IETF Remediation Instructions String
*/
imv_remediation_string_t *remediation_string;
/**
* SWID Tag Request ID
*/
uint32_t request_id;
/**
* Number of processed SWID Tag IDs
*/
int tag_id_count;
/**
* Number of processed SWID Tags
*/
int tag_count;
/**
* Number of missing SWID Tags or Tag IDs
*/
uint32_t missing;
/**
* SWID IMC ID
*/
TNC_UInt32 imc_id;
/**
* Top level JSON object
*/
json_object *jobj;
/**
* JSON array containing an inventory of SWID Tag IDs
*/
json_object *jarray;
};
METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
private_imv_swid_state_t *this)
{
return this->connection_id;
}
METHOD(imv_state_t, has_long, bool,
private_imv_swid_state_t *this)
{
return this->has_long;
}
METHOD(imv_state_t, has_excl, bool,
private_imv_swid_state_t *this)
{
return this->has_excl;
}
METHOD(imv_state_t, set_flags, void,
private_imv_swid_state_t *this, bool has_long, bool has_excl)
{
this->has_long = has_long;
this->has_excl = has_excl;
}
METHOD(imv_state_t, set_max_msg_len, void,
private_imv_swid_state_t *this, uint32_t max_msg_len)
{
this->max_msg_len = max_msg_len;
}
METHOD(imv_state_t, get_max_msg_len, uint32_t,
private_imv_swid_state_t *this)
{
return this->max_msg_len;
}
METHOD(imv_state_t, set_action_flags, void,
private_imv_swid_state_t *this, uint32_t flags)
{
this->action_flags |= flags;
}
METHOD(imv_state_t, get_action_flags, uint32_t,
private_imv_swid_state_t *this)
{
return this->action_flags;
}
METHOD(imv_state_t, set_session, void,
private_imv_swid_state_t *this, imv_session_t *session)
{
this->session = session;
}
METHOD(imv_state_t, get_session, imv_session_t*,
private_imv_swid_state_t *this)
{
return this->session;
}
METHOD(imv_state_t, get_contracts, seg_contract_manager_t*,
private_imv_swid_state_t *this)
{
return this->contracts;
}
METHOD(imv_state_t, change_state, void,
private_imv_swid_state_t *this, TNC_ConnectionState new_state)
{
this->state = new_state;
}
METHOD(imv_state_t, get_recommendation, void,
private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation *rec,
TNC_IMV_Evaluation_Result *eval)
{
*rec = this->rec;
*eval = this->eval;
}
METHOD(imv_state_t, set_recommendation, void,
private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation rec,
TNC_IMV_Evaluation_Result eval)
{
this->rec = rec;
this->eval = eval;
}
METHOD(imv_state_t, update_recommendation, void,
private_imv_swid_state_t *this, TNC_IMV_Action_Recommendation rec,
TNC_IMV_Evaluation_Result eval)
{
this->rec = tncif_policy_update_recommendation(this->rec, rec);
this->eval = tncif_policy_update_evaluation(this->eval, eval);
}
METHOD(imv_state_t, get_reason_string, bool,
private_imv_swid_state_t *this, enumerator_t *language_enumerator,
chunk_t *reason_string, char **reason_language)
{
return FALSE;
}
METHOD(imv_state_t, get_remediation_instructions, bool,
private_imv_swid_state_t *this, enumerator_t *language_enumerator,
chunk_t *string, char **lang_code, char **uri)
{
return FALSE;
}
METHOD(imv_state_t, destroy, void,
private_imv_swid_state_t *this)
{
json_object_put(this->jobj);
DESTROY_IF(this->session);
DESTROY_IF(this->reason_string);
DESTROY_IF(this->remediation_string);
this->contracts->destroy(this->contracts);
free(this);
}
METHOD(imv_swid_state_t, set_handshake_state, void,
private_imv_swid_state_t *this, imv_swid_handshake_state_t new_state)
{
this->handshake_state = new_state;
}
METHOD(imv_swid_state_t, get_handshake_state, imv_swid_handshake_state_t,
private_imv_swid_state_t *this)
{
return this->handshake_state;
}
METHOD(imv_swid_state_t, set_request_id, void,
private_imv_swid_state_t *this, uint32_t request_id)
{
this->request_id = request_id;
}
METHOD(imv_swid_state_t, get_request_id, uint32_t,
private_imv_swid_state_t *this)
{
return this->request_id;
}
METHOD(imv_swid_state_t, set_swid_inventory, void,
private_imv_swid_state_t *this, swid_inventory_t *inventory)
{
chunk_t tag_creator, sw_id;
char software_id[BUF_LEN];
json_object *jstring;
swid_tag_id_t *tag_id;
enumerator_t *enumerator;
enumerator = inventory->create_enumerator(inventory);
while (enumerator->enumerate(enumerator, &tag_id))
{
/* Construct software ID from tag creator and unique software ID */
tag_creator = tag_id->get_tag_creator(tag_id);
sw_id = tag_id->get_unique_sw_id(tag_id, NULL);
snprintf(software_id, BUF_LEN, "%.*s__%.*s",
(int)tag_creator.len, tag_creator.ptr,
(int)sw_id.len, sw_id.ptr);
DBG3(DBG_IMV, " %s", software_id);
/* Add software ID to JSON array */
jstring = json_object_new_string(software_id);
json_object_array_add(this->jarray, jstring);
}
enumerator->destroy(enumerator);
}
METHOD(imv_swid_state_t, get_swid_inventory, json_object*,
private_imv_swid_state_t *this)
{
return this->jobj;
}
METHOD(imv_swid_state_t, set_missing, void,
private_imv_swid_state_t *this, uint32_t count)
{
this->missing = count;
}
METHOD(imv_swid_state_t, get_missing, uint32_t,
private_imv_swid_state_t *this)
{
return this->missing;
}
METHOD(imv_swid_state_t, set_count, void,
private_imv_swid_state_t *this, int tag_id_count, int tag_count,
TNC_UInt32 imc_id)
{
this->tag_id_count += tag_id_count;
this->tag_count += tag_count;
this->imc_id = imc_id;
}
METHOD(imv_swid_state_t, get_count, void,
private_imv_swid_state_t *this, int *tag_id_count, int *tag_count)
{
if (tag_id_count)
{
*tag_id_count = this->tag_id_count;
}
if (tag_count)
{
*tag_count = this->tag_count;
}
}
METHOD(imv_swid_state_t, get_imc_id, TNC_UInt32,
private_imv_swid_state_t *this)
{
return this->imc_id;
}
/**
* Described in header.
*/
imv_state_t *imv_swid_state_create(TNC_ConnectionID connection_id)
{
private_imv_swid_state_t *this;
INIT(this,
.public = {
.interface = {
.get_connection_id = _get_connection_id,
.has_long = _has_long,
.has_excl = _has_excl,
.set_flags = _set_flags,
.set_max_msg_len = _set_max_msg_len,
.get_max_msg_len = _get_max_msg_len,
.set_action_flags = _set_action_flags,
.get_action_flags = _get_action_flags,
.set_session = _set_session,
.get_session= _get_session,
.get_contracts = _get_contracts,
.change_state = _change_state,
.get_recommendation = _get_recommendation,
.set_recommendation = _set_recommendation,
.update_recommendation = _update_recommendation,
.get_reason_string = _get_reason_string,
.get_remediation_instructions = _get_remediation_instructions,
.destroy = _destroy,
},
.set_handshake_state = _set_handshake_state,
.get_handshake_state = _get_handshake_state,
.set_request_id = _set_request_id,
.get_request_id = _get_request_id,
.set_swid_inventory = _set_swid_inventory,
.get_swid_inventory = _get_swid_inventory,
.set_missing = _set_missing,
.get_missing = _get_missing,
.set_count = _set_count,
.get_count = _get_count,
.get_imc_id = _get_imc_id,
},
.state = TNC_CONNECTION_STATE_CREATE,
.rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
.eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
.connection_id = connection_id,
.contracts = seg_contract_manager_create(),
.imc_id = TNC_IMCID_ANY,
.jobj = json_object_new_object(),
.jarray = json_object_new_array(),
);
json_object_object_add(this->jobj, "data", this->jarray);
return &this->public.interface;
}
src/libimcv/plugins/imv_swid/imv_swid_state.h
-145
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@@ -1,145 +0,0 @@
/*
* Copyright (C) 2013-2016 Andreas Steffen
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup imv_swid imv_swid
* @ingroup libimcv_plugins
*
* @defgroup imv_swid_state_t imv_swid_state
* @{ @ingroup imv_swid
*/
#ifndef IMV_SWID_STATE_H_
#define IMV_SWID_STATE_H_
#include <imv/imv_state.h>
#include <swid/swid_inventory.h>
#include <library.h>
#include <json.h>
typedef struct imv_swid_state_t imv_swid_state_t;
typedef enum imv_swid_handshake_state_t imv_swid_handshake_state_t;
/**
* IMV OS Handshake States (state machine)
*/
enum imv_swid_handshake_state_t {
IMV_SWID_STATE_INIT,
IMV_SWID_STATE_WORKITEMS,
IMV_SWID_STATE_END
};
/**
* Internal state of an imv_swid_t connection instance
*/
struct imv_swid_state_t {
/**
* imv_state_t interface
*/
imv_state_t interface;
/**
* Set state of the handshake
*
* @param new_state the handshake state of IMV
*/
void (*set_handshake_state)(imv_swid_state_t *this,
imv_swid_handshake_state_t new_state);
/**
* Get state of the handshake
*
* @return the handshake state of IMV
*/
imv_swid_handshake_state_t (*get_handshake_state)(imv_swid_state_t *this);
/**
* Set the SWID request ID
*
* @param request_id SWID request ID to be set
*/
void (*set_request_id)(imv_swid_state_t *this, uint32_t request_id);
/**
* Get the SWID request ID
*
* @return SWID request ID
*/
uint32_t (*get_request_id)(imv_swid_state_t *this);
/**
* Set or extend the SWID Tag ID inventory in the state
*
* @param inventory SWID Tags ID inventory to be added
*/
void (*set_swid_inventory)(imv_swid_state_t *this, swid_inventory_t *inventory);
/**
* Get the encoding of the complete SWID Tag ID inventory
*
* @return SWID Tags ID inventory as a JSON array
*/
json_object* (*get_swid_inventory)(imv_swid_state_t *this);
/**
* Set the number of still missing SWID Tags or Tag IDs
*
* @param count Number of missing SWID Tags or Tag IDs
*/
void (*set_missing)(imv_swid_state_t *this, uint32_t count);
/**
* Get the number of still missing SWID Tags or Tag IDs
*
* @result Number of missing SWID Tags or Tag IDs
*/
uint32_t (*get_missing)(imv_swid_state_t *this);
/**
* Set [or with multiple attributes increment] SWID Tag [ID] counters
*
* @param tag_id_count Number of received SWID Tag IDs
* @param tag_count Number of received SWID Tags
* @param imc_id SWID IMC ID
*/
void (*set_count)(imv_swid_state_t *this, int tag_id_count, int tag_count,
TNC_UInt32 imc_id);
/**
* Set [or with multiple attributes increment] SWID Tag [ID] counters
*
* @param tag_id_count Number of received SWID Tag IDs
* @param tag_count Number of received SWID Tags
*/
void (*get_count)(imv_swid_state_t *this, int *tag_id_count, int *tag_count);
/**
* Get SWID IMC ID
*
* @return SWID IMC ID
*/
TNC_UInt32 (*get_imc_id)(imv_swid_state_t *this);
};
/**
* Create an imv_swid_state_t instance
*
* @param id connection ID
*/
imv_state_t* imv_swid_state_create(TNC_ConnectionID id);
#endif /** IMV_SWID_STATE_H_ @}*/